While the man accused of shooting a 13-year-old neighbor to death last week pleaded not guilty in court, two separate investigations have been launched into how Milwaukee police treated the mother of the victim.

Only one of the 14 jurors selected is black. Prosecutor Mark Williams said he's not happy that the defense eliminated the other three black people in the overall jury pool.

Defense attorney Franklyn Gimbel said race wasn't an issue.

Williams said Tuesday morning that the defendant's own security cameras captured the May 2012 shooting. He said jurors will see the terror in Darius Simmons's face and see how cold-blooded Spooner was.

According to the criminal complaint, Spooner suspected Simmons of breaking into his home and stealing guns. Spooner confronted the teen on the sidewalk and demanded he return them. The criminal complaint said Simmons denied stealing anything and Spooner shot him in the chest.

Gimbel concedes his client shot the fatal bullet, but said Spooner didn't intend to kill Simmons. Gimbel said Spooner's mental illness prevented him from knowing right from wrong at the time of the shooting.